The main goal of this paper is to empirically test the function of European merger control in light of the 2004 regulatory reform, which was expected to introduce a more efficient regulatory framework for the assessment of mergers within the EU. We use stock market data to identify cases where...

The authors use a variance ratio test to test the weak form of market efficiency as regards capital markets in the Czech Republic, Slovakia, Hungary, Poland, and in the United States. Market efficiency was tested using weekly and monthly values of relevant market indices in a period from 1993...